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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: neutron
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1283765

Title:
  ovs plugin changes port it shouldn't change

Status in OpenStack Neutron (virtual network service):
  Fix Released

Bug description:
  (Using ML2 with ovs)

  While playing with https://github.com/stackforge/cookbook-openstack-
  network/blob/master/files/default/neutron-ha-tool.py to migrate
  routers between L3 agents, I had the issue that the connectivity got
  lost.

  After investigating, it turns out that interface for the port of the
  router that is connected to the external network (attached to br-
  public -- which is usually named br-ext) gets a tag. Manually removing
  the tag makes things work.

  I'm attaching a bit of the log where the port_update message is received (it's received for the two interfaces of the router, so this needs some care when reading). We can see the following:
   Running command: ['sudo', '/usr/bin/neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ovs-vsctl', '--timeout=2', 'set', 'Port', 'qg-923f9b0e-aa', 'tag=2']

  However, reading the code, it seems that this kind of actions should
  only be done for ports on br-int (because of "vif_port =
  self.int_br.get_vif_port_by_id(port['id'])"). So this shouldn't be run
  for other ports.

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